Coating paper receptacles.



C. F. JENKINS.

GOATING PAPER RECEPTAGLBS.

APPLIUATION FILED APR. 13, 1909.

@Muentoz Wi 11 use@ CHARLES FRANCIS JENKINS, OF

wAsHiNGroN, DISTRICT or COLUMBIA, AssIGNon. 'ro

SINGLE SERVICE PACKAGE CORPORATION OEMERICA, 0F NEW YORK, N. YI, A

CORPORATION OF NEW JERSEY.

coArrNe Parma anioinrracnns asseoir.

lSpeeication of Letters Patent.

Patented Mar. a, ieri.

Application ledipril 13, 1909. Serial No. 489,665.

To all whom it may concern.'

Be it known that l, CHARLES FRANCIS JENKINS, a citizen of the UnitedStates, residing at Washington, in the District of Columbia, haveinvented certain new and useful Improvements in Coating PaperReceptacles, of which the following is a specification, reference beinghad therein to the accompanying drawing.

For certain uses it is found desirable to coat the ends of paper bottlesand the like after they are completed and to provide means for doingthis rapidly, coating all to a predetermined distance from the end, isthe general object of this invention. rlhis is done by providing ashallow trough having at each end inclines or ways extending from itsbottom to its margin, adding devices for keeping the liquid coatingmaterial at a constant level in the trough, and further adding anendless carrier chain or the like between the cross bars of whichbottles are inserted, to be dragged along the bottom of the trough whileerect.

In the accompanying drawings, Figure l is a plan view of the novelpartsof the apparatus. Fig. 2 is a side elevation, partly in section, ofthe same devices. Fig. 3 is an end elevation of the structure.

In these figures, A represents a suitable frame supporting a broadshallow trough B,of any desired length, around the front side of whichpasses an endless chain belt C carried by sprocket wheels C and drivenby a shaft C2. The chain may be composed of two parallel chains C, at adistance from each other somewhat greater than the diameter of thebottles to be treated, and connected by cross bars C4 shown atapproximately the same distance apart as the chains. That portion of thebottom .of the trough which lies between the folds of the belt has falsebottom strips B forming upwardly inclined ways. As shown, the stripspass over the ends of the trough and preferably projectat B2 to somedistance beyond the same. If bottles D be placed on end between thecrossbars so that they rest upon the part B2 they will be dragged alongthe ways and bottom always descending by gravity to follow the waysv andbottom, and will finally be passed from the trough at the opposite end.When paran is used as the coating material, the trough is heated by asmany burners E as may be desired. To insure a desired constant level ofthe material in the trough, I provide an upwardly closed tank F having adownwardly open projecting portion F provided with lateral openings F2,and further provided, 1n this instance, with a supporting projection F3which rests upon the frame, while the open portion F rests freely uponthe bottom of the trough. The tank being inverted, solid pieces ofparaiiin may be dropped into the open portion F', and a suitable amountmay be placed in the trough also. The tank is then placed in the troughas shown. Heat being applied by the burners the whole will be liquefied.The apertures are at such distance above the bottom of the trough thatfwhen the liquid is at the desired height in the trough they are barelycovered. As no air can now enter the closed tank, no liquid will owtherefrom into the trough, but as soon as paralin is used from thetrough, lowering the level, air enters through the aperture and liquiddescends into the trough unt-il the apertures are again covered, andthus the liquid is automatically kept at the desired level and all thebottles are coated to the desired height. Obviously, this distance isgoverned by the dista-nce of the apertures from the bottom of the pan;and this distance may be readily varied, of course, to suit therequirements.

. What l claim is:

l. In apparatus of the class described, the combination with a troughadapted to contain a coating liquid, of a rack-like belt arranged totravel over the trough at a fraction of a `reeeptacles height from thebottom of the trough and receive in its openings upright paperreceptacles resting on the bottom of the trough, and means for drivingthe belt whereby the lower end only of receptacles may be heavilycoated.

2. An open trough adapted to contain coating liquid and having atopposite ends inclines adapted to lower to the bottom of the trougharticles forced along the one ineline and to raise them from the bottomas they are forced in the same direction along the other incline, rangedto pass over both inclines Iand to engage a series of uprightreceptacles to be of a traveling belt arcoated and advance them whileleaving them free to rise and fall following the bottom and incline.

3. The combination with a coating trough have at each end near one sidesmooth inclined ways leading from its bottom to its top, of a rack-likeendless belt assing around the trough in the plane of said ways andadapted to have a series of bottles set loosely in its meshes, to restupon the ways by gravity and be moved laterally by the belt regardlessof the belts engagement.

4. The combination with a shallow coating trough having at each end nearone side smooth inclined ways along which bottles may'slde from its topto its bottom and from its bottom to its top, of an endless belt havingopenings to loosely hold laterally bottles resting upon the bottom ofthe 'trough and said ways and passing around the trough in the plane ofthe Ways, and an upwardly closed tank having a broad open mouth in thetrough and provided with a lateral opening at the height desired for thecoating. liquid in the trough.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES FRANCIS JENKINS.

Witnesses: I

ARTUR L. BRYANT, WM. M. BIRNEY.

